235 – Reactor Core Stray Loss Analysis

OverviewWhen designing a high-frequency reactor which is a key component in a converter, inductance and loss, which are parameters required for voltage conversion, are important factors. Copper loss …

24 Oct 2018

195 – Torque characteristics analysis of three-phase induction motors using 3D correction function

OverviewAn induction motor is a motor in which the rotating magnetic field of the stator winding causes induced current to flow in an secondary conductor, which exerts force on the rotor in the rotat…

251 – Vibration Analysis of an Alternator

OverviewElectromagnetic force in the form of an electromagnetic excitation force acting on a motor or an alternator causes vibration and noise. Vibration and noise also are produced when this electro…

15 May 2018

237 – AC Loss Analysis of an IPM Motor

OverviewPrimary power loss drivers in PM machines are iron, magnets and the winding. The main focus of this analysis is the winding losses, particularly those which occur in the end winding. The flux…

13 Mar 2018

228 – Thermal Analysis of an Induction Motor

An induction motors are widely used in everything from industrial machines to home appliances because they have a simple construction and are small, light, affordable, and maintenance-free. The rotat…

219 – Cogging Torque Analysis of Axial Flux Motor

OverviewAxial flux motors are a type of electrical machines which use the flux in axial direction to create a magnetic circuit linkage with the other components in the magnets. The main benefit of th…

216 – Simulation of a Claw-Pole Type Alternator Using a Control Simulator and JMAG-RT

OverviewThe demand for low fuel consumption of automobiles has been increasing every year, and types of auxiliary systems and devices such as power steering and cooling pumps are being electrified to…

212 – AC Loss Analysis of a Claw Pole Alternator

OverviewElectric Machines are affected primarily by 3 types of losses. Iron losses in steel lamination sheets, joule losses in the conducting components and joule losses in coils.When we primarily fo…

209 – Magnetic Measurement Analysis Accounting for Eddy Currents

OverviewMagnetic properties affect the performance of products composed of magnetic circuits using magnetic material. This requires that the magnetic properties are assessed accurately. The H current…

9 Mar 2018

184 – Reactor Sound Pressure Analysis taking Magnetostriction into Account

OverviewReactors are used in all sorts of systems related to power systems. For example, they fill the role of making the current pulsation between an inverter and a motor smoother. Reactor vibration…

8 Mar 2018

149 – Analysis of Magnetic Force Acting on the Arc of a Vacuum Circuit Breaker

OverviewVacuum circuit breakers have the function of breaking the current when a large current flows due to a short circuit or other reason in distribution boards, etc. When the vacuum circuit breake…

25 Feb 2011

150 – Electromagnetic Repulsion Analysis of a Vacuum Circuit Breaker

OverviewVacuum circuit breakers have the function of breaking the current when a large current flows due to a short circuit or other reason in distribution boards, etc. Contact pressure is applied to…

148 – Loss Analysis of a Power Transformer (Flyback Converter)

OverviewA flyback converter is a well-known system for small capacity power supplies in the several-dozen W class. They are cheap and have a simple structure, so they are widely used as converters fo…

13 Oct 2010

140 – Analysis of Electromagnetic Repulsion Produced in Small Contact Bridges

OverviewElectromagnetic repulsion is generated in the contact points of switches used in electrical equipment and current inflow points during resistance heating when contact terminals bridge through…

26 Nov 2009

129 – Analysis of a PM Stepper Motor Accounting for Magnetization

OverviewStepper motors are commonly used for positioning in printers and digital cameras. In PM stepper motors, the motor's characteristics are determined through design of the magnetization state of…

126 – Magnetization Analysis Accounting for Eddy Currents

OverviewA magnet's magnetizing state largely affects the characteristics of a device that uses permanent magnets. A magnetization device performs magnetization by applying an extremely strong magneti…

27 Oct 2009